Corrugated resin pipe

Details Corrugated resin pipe Corrugated resin pipe

1997-04-09

1998-11-24

Brinson, Patrick F.

Pipes and tubular conduits

Flexible

Corrugated

138122, 138155, 138120, 138177, F16L 1100

Patent

active

058394770

ABSTRACT:
The external shape of a pipe wall is formed of sectionally rectangular wall portions and sectionally circular wall portions which are disposed alternately in an axial direction of the pipe, and the internal shape of the pipe wall is formed into a substantially linear circular-cylindrical surface. The whole of the pipe wall is formed of a material of synthetic resin or rubber.

REFERENCES:
patent: 2146352 (1939-02-01), Rohrer
patent: 2206286 (1940-07-01), Karmazin
patent: 2563578 (1951-08-01), Candee
patent: 3693664 (1972-09-01), Schmunk
patent: 4275771 (1981-06-01), Campbell, Jr.
patent: 4560320 (1985-12-01), Baus
patent: 4662734 (1987-05-01), Nishi
patent: 4790975 (1988-12-01), Jarvenkyla et al.
patent: 5120083 (1992-06-01), Stine
patent: 5429397 (1995-07-01), Kano
Copending Application Serial No. 08/600,595 Filed on Feb. 13, 1996, Now Allowed. (Copy of Specification as Filed Enclosed).

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